Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.BorderLayout;
import java.awt.FlowLayout;

import javax.swing.JComboBox;
import javax.swing.JFrame;

public class Main extends JFrame {
    JComboBox<String> states;

    public Main() {
        super();
        states = new JComboBox<String>(new String[] { "Select a State", "AL", "AK", "AZ", "AR", "CA", "CO", "CT",
                "DE", "FL", "GA", "HI", "ID", "IL", "IN", "IA", "KS", "KY", "LA", "ME", "MD", "MA", "MI", "MN",
                "MS", "MO", "MT", "NE", "NV", "NH", "NJ", "NM", "NY", "NC", "ND", "OH", "OK", "OR", "PA", "RI",
                "SC", "SD", "TN", "TX", "UT", "VT", "VA", "WA", "WV", "WI", "WY" });

        setLayout(new FlowLayout(FlowLayout.CENTER));
        add(states, BorderLayout.CENTER);

        states.addItemListener(e -> {
            if (states.getSelectedIndex() > 0) {
                System.out.println("YOU CLICK INDEX- " + states.getSelectedIndex());
            }
        });
    }

    public static void main(String[] args) {
        Main g = new Main();
        g.setVisible(true);
        g.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        g.setBounds(100, 100, 300, 300);
    }
}